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3 years ago

Does anyone know how to do this pls help

Mathematics

2 answers:

erica [24]3 years ago

7 0

Write:
x + 18 + 23 = 90

Next combine like terms (which is 18 + 23)

*Remember that combining like terms is adding or subtracting the numbers that are in one side of the equal sign (basically do not add 18, 23, and 90).

You will now get x + 41 = 90.

Now subtract 41 into 90
(90 - 41).

Your answer should be x = 49.

*Make sure this is the right answer by adding 49, 18, and 23 together. If it all equals to 90°, then the answer is correct.

irina [24]3 years ago

5 0

Answer:

Step-by-step explanation:

x+18+23=90 (right angle)

x+ 41=90

x=90-41

x= 49

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Lyla is shopping for school supplies. She has $20.00 to spend. She plans to buy a package of pens for $4.98. She also wants to b

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<h3><em><u>Question:</u></em></h3>

Lyla is shopping for school supplies. She has $20.00 to spend. She

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<h3><em><u>Answer:</u></em></h3>

$4.98+0.7x\leq 20$ inequality that can be used to find the original price, x, of a calculator lyla can buy

<h3><em><u>Solution:</u></em></h3>

Given that,

Lyla has $ 20 to spend

So she can spend entire $ 20 or less than $ 20

Total amount she has = $ 20

She plans to buy a package of pens for $4.98

Cost of package of pens = $ 4.98

She also wants to buy a calculator

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All calculators are being sold for 30 percent less than the original price

Selling price of calculator = original price - 30 % of original price

Selling price of calculator = x - 30 % of x = x - 0.3x = 0.7x

Selling price of calculator = 0.7x

<em><u>Thus a inequality can be framed as:</u></em>

Cost of package of pens + Selling price of calculator $\leq$ 20

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Answer:

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